Amaranth, the name of Chinese medicine. It is an annual herb in the family of Amaranthaceae. Fertile and juicy, glabrous, 10-30cm high, born in the field roadside and garden ruins and other sunny places. It is distributed all over the country. This species is a dual-use plant for medicine and food. The whole herb is used for medicine, with the effect of clearing away heat and dampness, detoxifying swelling, reducing inflammation, quenching thirst, and diuretic; the seeds improve eyesight. Annual herb. Much wrinkled and curled, often clumped. Stem cylindrical, up to 30cm long, 0.1-0.2cm in diameter, surface yellow-brown, with obvious longitudinal grooves. Leaves opposite or alternate, fragile, complete leaf blade obovate, 1-2.5cm long, 0.5-1.5cm wide; greenish brown, apex obtuse flat or emarginate, entire. Flowers small, 3 to 5 at branch ends, petals 5, yellow. Capsule conical, containing most tiny seeds. Slightly acidic flavor. Prefer warm and humid climate, adaptable, drought-resistant, in the hills and flatland general soil can be cultivated. Born in the field roadside and garden ruins and other sunny places.